If you are gonna do a carrier replacement, there are tons of options, ARB, Detroit, OX, etc. I love my detroit and like I said, it is in my daily driver. No special driving skills really, you will adapt in no time. If you are just gonna do spider gear replacement I would look at powertrax, I believe they have a locker and a limited slip. You should be able to find all kinds of info online about them. I have heard that there are some noises from the spider gear/ lunchbox lockers, but never experienced it. If you don't mind spending the money on a carrier replacement, I love detroit, they have been around for ever and make a great product. Let me know what you think.
Nick